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CVE-2026-116575

Updated on 26 Oct 2026

Severity

6.3 Medium severity

Details

CVSS score
6.3
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE ID
Links
NISTCIRCLRHELUbuntu

Overview

About vulnerability

Mem0 provides persistent memory infrastructure for AI agents and applications. Prior to Python SDK 2.0.18 and TypeScript SDK 3.1.6, _build_session_scope() in mem0/memory/main.py and Memory.buildSessionScope() in the TypeScript SDK join caller-controlled user_id, agent_id, and run_id values using unescaped & and = delimiters. A caller can embed another scope component in a controlled identifier so that distinct tenant tuples produce the same session_scope key. Memory.add(), AsyncMemory.add(), and the REST POST /memories flow use that key to read and save recent raw messages, allowing cross-tenant conversation disclosure and eviction or interleaving of another tenant’s history. This issue is fixed in Python SDK 2.0.18 and TypeScript SDK 3.1.6.

Details

Affected product:
mem0ai
Affected packages:
mem0ai @ 2.4.6 (+1 more)